A new combined thunder warning and positioning instrument
By combining a high-precision lightning location antenna and a low-false-alarm thunderstorm warning antenna, and integrating a field-milled atmospheric electric field meter with a time-difference lightning location meter, the problems of limited monitoring range and low positioning accuracy of traditional lightning warning devices are solved, achieving high-precision lightning warning and positioning.
Patent Information
- Application Number
- CN202011012513.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-09-23
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2040-09-23
AI Technical Summary
Traditional lightning warning devices have limited monitoring range, a high false alarm rate, and cannot locate lightning. Traditional lightning location devices also have low accuracy and cannot measure atmospheric electrostatic fields.
A high-precision lightning location antenna and a low-false-alarm thunderstorm warning antenna are combined with a field-milled atmospheric electric field meter and a time-difference lightning location instrument. Lightning signals are acquired through fast electric field detection and slow electric field detection antennas, and data processing and transmission are performed using a signal processor.
It improves the accuracy of lightning warnings, reduces the false alarm rate, expands the monitoring range, and can measure the atmospheric electrostatic field in real time, providing accurate lightning location and proximity warnings.
Smart Images

Figure CN111983334B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of lightning early warning and lightning positioning, and particularly relates to a new combined lightning early warning and positioning instrument. BACKGROUND
[0002] Lightning disaster has become one of the 10 most serious natural disasters announced by the United Nations, which can not only cause forest and oil depot fires, but also cause power supply and communication system failure or damage, and cause great threat to aerospace, mine, cultural relics building and some important and sensitive high-tech equipment. Lightning has instantaneousness and randomness, which increases the difficulty of lightning protection engineering design and lightning accident analysis, and lightning early warning and lightning positioning technology provides a way to solve this problem.
[0003] The lightning early warning device is a meteorological detection instrument for issuing a warning signal when lightning approaches or occurs. The traditional lightning early warning device refers to an atmospheric electric field instrument, which is used for continuously monitoring atmospheric electric field intensity, identifying electric field change rate, and issuing a lightning early warning signal within 30 minutes before lightning occurs. The lightning early warning and prediction is carried out by using the atmospheric electric field instrument alone, the monitoring range is limited (radius 20 km), the false alarm rate is high, lightning cannot be positioned, and lightning approach early warning cannot be provided.
[0004] The lightning positioning device is a meteorological detection instrument for monitoring lightning occurrence, which can operate all day and record time, position, intensity and polarity of lightning occurrence, and provide lightning approach early warning and prediction, but cannot make early warning in the initial stage of lightning formation. The traditional lightning positioning instrument adopts a single station measurement method of magnetic field + electric field, simultaneously measures the magnetic field signal and electric field intensity of lightning, and calculates the lightning position through the electric field intensity and the magnetic field direction, but the precision is about 500 meters, the accuracy is low, the atmospheric static electric field cannot be measured, and the current requirements cannot be met. SUMMARY
[0005] The present application provides a new combined lightning early warning and positioning instrument to solve the problems of limited monitoring range, high false alarm rate, inability to position lightning, and inability to provide lightning approach early warning of a single lightning early warning device, and low accuracy and inability to measure atmospheric static electric field of a single lightning positioning device.
[0006] The present application provides a new combined lightning early warning and positioning instrument, which comprises:
[0007] The lightning early warning and positioning antenna comprises a high-precision lightning positioning antenna and a low-false-alarm thunderstorm early warning antenna, wherein,
[0008] The high-precision lightning positioning antenna comprises a fast electric field detection antenna and a fast electric field signal amplifier, the low false alarm thunderstorm early warning antenna comprises a slow electric field detection antenna, a slow electric field signal sampler and a slow electric field signal processor, and the high-precision lightning positioning antenna and the low false alarm thunderstorm early warning antenna are arranged at the top of the lightning early warning positioning antenna, wherein,
[0009] The fast electric field detection antenna is configured to acquire a fast electric field induction signal radiated when lightning occurs; and the slow electric field detection antenna is configured to measure an atmospheric electrostatic field in real time.
[0010] The fast electric field signal amplifier is connected with the fast electric field detection antenna and is configured to amplify and filter the fast electric field induction signal collected by the fast electric field detection antenna.
[0011] The slow electric field signal sampler is connected with the slow electric field detection antenna and is configured to collect an analog signal of the slow electric field detection antenna.
[0012] The slow electric field signal processor is connected with the slow electric field signal sampler and is configured to process the analog signal in the slow electric field signal sampler and convert the analog signal into a digital signal.
[0013] The lightning monitoring positioning control box comprises a GPS antenna, a fast electric field signal sampler, a fast electric field signal processor, a remote communicator, a remote controller and a local controller, wherein,
[0014] The GPS antenna is arranged at the top of the lightning monitoring positioning control box.
[0015] The fast electric field signal sampler is connected with the fast electric field signal amplifier and is configured to collect the signal amplified by the fast electric field signal amplifier into a local storage and convert the signal into a digital signal.
[0016] The fast electric field signal processor is connected with the fast electric field signal sampler and is configured to process the digital signal in the fast electric field signal sampler and compress and save an effective signal file in a local storage.
[0017] The remote communicator is connected with the slow electric field signal processor, the fast electric field signal processor and a server and is configured to undertake a communication work of the signal processor and the server and upload data to the server in real time.
[0018] The remote controller is connected with the fast electric field signal sampler and the fast electric field signal processor and is configured to perform a restart operation after a core equipment of the lightning early warning positioning instrument fails.
[0019] The local controller is connected with the slow electric field signal processor and the fast electric field signal processor and is configured to output three-way early warning.
[0020] Optionally, the fast electric field probe antenna is a flat antenna, which is arranged parallel to the ground; and the slow electric field probe antenna is an atmospheric electric field probe antenna, which is a field mill type probe antenna.
[0021] Optionally, the fast electric field signal amplifier comprises a fast electric field operational amplifier and a fast electric field filter circuit, the fast electric field operational amplifier is connected with the fast electric field probe antenna, and the fast electric field filter circuit is connected in the fast electric field operational amplifier circuit.
[0022] Optionally, the slow electric field signal sampler comprises a slow electric field operational amplifier, a slow electric field filter circuit, a phase-sensitive detection circuit and a phase discrimination circuit, the slow electric field operational amplifier is connected with the slow electric field probe antenna, the slow electric field filter circuit is connected between the slow electric field operational amplifier circuit and the phase-sensitive detection circuit, and the phase discrimination circuit is connected with the slow electric field probe antenna.
[0023] Optionally, the slow electric field signal processor comprises an analog-to-digital conversion circuit, which is connected with an integration circuit and is configured to convert the collected analog signal into a digital signal.
[0024] Optionally, the fast electric field signal sampler comprises a digital-to-analog conversion circuit and a GPS time-providing circuit, the signal sampling rate of the digital-to-analog conversion circuit is 1-25 MHz, and the GPS time-providing circuit is connected with a GPS antenna and the fast electric field signal sampler and is configured to provide accurate time for the fast electric field signal sampler.
[0025] Optionally, the fast electric field signal processor comprises a digital signal acquisition circuit and a digital signal storage circuit, the digital signal acquisition circuit is connected with the fast electric field signal sampler and is configured to read the lightning data in the fast electric field signal sampler, and the digital signal storage circuit is connected with a CPU in the fast electric field signal processor and is configured to store the lightning data.
[0026] Optionally, the remote communicator comprises a Wifi communication circuit, which is wirelessly connected with the fast electric field signal processor and the slow electric field signal processor and is configured to transmit the lightning early warning positioning information stored in the signal processing circuit to a server.
[0027] Optionally, the remote controller comprises a wireless communication circuit and a control circuit, the wireless communication circuit is connected with the remote communicator and is configured to connect a wireless public network, and the control circuit is connected with the fast electric field signal sampler and the fast electric field signal processor and is configured to remotely restart when the fast electric field signal sampler or the fast electric field signal processor is abnormal.
[0028] Optionally, the local controller comprises a local control output circuit connected with the slow electric field signal processor and the fast electric field signal processor, and configured to locally output the early warning signal.
[0029] From the above technical solutions, the application provides a new combined lightning early warning positioning instrument, which comprises: a lightning early warning positioning antenna, the lightning early warning positioning antenna comprises a high-precision lightning positioning antenna and a low-false-alarm thunderstorm early warning antenna, and the high-precision lightning positioning antenna and the low-false-alarm thunderstorm early warning antenna are arranged at the top of the lightning early warning positioning antenna; and a lightning monitoring positioning control box, the lightning monitoring positioning control box comprises a GPS antenna, a fast electric field signal sampler, a fast electric field signal processor, a remote communicator, a remote controller and a local controller.
[0030] The new combined lightning early warning positioning instrument provided by the application integrates the field grinding atmospheric electric field instrument and the time difference method lightning positioning instrument, solves the problems that a single lightning early warning device cannot position lightning and cannot provide lightning approaching early warning, and a single lightning positioning device cannot make a warning in the initial stage of lightning formation, reduces the false alarm rate of lightning early warning, and reduces the cost of lightning early warning positioning equipment. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the technical solutions of the application, the drawings needed in the embodiments will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.
[0032] Figure 1 The structure diagram of the lightning early warning positioning antenna in the new combined lightning early warning positioning instrument provided by the application is shown in the figure.
[0033] Figure 2 The top view structure diagram of the lightning early warning positioning antenna in the new combined lightning early warning positioning instrument provided by the application is shown in the figure.
[0034] Figure 3 The structure diagram of the lightning monitoring positioning control box in the new combined lightning early warning positioning instrument provided by the application is shown in the figure.
[0035] Figure 4 The front structure diagram of the inside of the lightning monitoring positioning control box in the new combined lightning early warning positioning instrument provided by the application is shown in the figure.
[0036] Figure 5 The back structure diagram of the inside of the lightning monitoring positioning control box in the new combined lightning early warning positioning instrument provided by the application is shown in the figure.
[0037] ILLUSTRATIVE DESCRIPTION
[0038] Wherein, 1-lightning warning positioning antenna, 2-lightning monitoring positioning control box, 3-fast electric field detection antenna, 4-fast electric field signal amplifier, 5-slow electric field detection antenna, 6-slow electric field signal sampler, 7-slow electric field signal processor, 8-GPS antenna, 9-fast electric field signal sampler, 10-fast electric field signal processor, 11-remote communicator, 12-remote controller, 13-local controller, 14-high-precision lightning positioning antenna, 15-low false alarm thunderstorm warning antenna. DETAILED DESCRIPTION
[0039] The embodiments will be described in detail below with reference to examples thereof as illustrated in the accompanying drawings. In the following description, same numbers refer to same elements in all figures unless otherwise described. The embodiments described in the following examples do not represent all the implementations consistent with the present application. They are merely examples of systems and methods consistent with some aspects of the present application as detailed in the claims.
[0040] Lightning disaster has become one of the 10 most serious natural disasters announced by the United Nations. The National Medium and Long-term Science and Technology Development Plan Outline (2006-2020) lists public safety as a key area and lightning and other major natural disasters monitoring and defense as a priority theme in this area; The China Meteorological Service Development Strategy Research points out that establishing a lightning defense security system is an important strategy needed to achieve the goal of national security meteorological security.
[0041] The present application provides a new combined lightning warning positioning instrument, which comprises:
[0042] Lightning warning positioning antenna 1, see Figure 1 And Figure 2 The structure diagram of lightning warning positioning antenna 1 in a new combined lightning warning positioning instrument provided by the present application, the lightning warning positioning antenna 1 comprises high-precision lightning positioning antenna 14 and low false alarm thunderstorm warning antenna 15, wherein,
[0043] The high-precision lightning positioning antenna 14 comprises fast electric field detection antenna 3 and fast electric field signal amplifier 4, and the low false alarm thunderstorm warning antenna 15 comprises slow electric field detection antenna 5, slow electric field signal sampler 6 and slow electric field signal processor 7, and the high-precision lightning positioning antenna 14 and the low false alarm thunderstorm warning antenna 15 are arranged at the top of the lightning warning positioning antenna 1, wherein,
[0044] The fast electric field detection antenna 3 is configured to obtain the fast electric field induction signal radiated when lightning occurs; the slow electric field detection antenna 5 is configured to measure the atmospheric electrostatic field in real time;
[0045] The top of the thunder warning positioning antenna 1 is two conical probes, one of which is a high-precision lightning positioning antenna 14 vertically arranged at the top of the thunder warning positioning antenna 1, and the fast electric field detection antenna 3 and the fast electric field signal amplifier 4 are arranged inside it; the other is a low false alarm thunderstorm warning antenna 15 arranged below the high-precision lightning positioning antenna 14 through a connecting rod, and the slow electric field detection antenna 5, the slow electric field signal sampler 6 and the slow electric field signal processor 7 are arranged inside it.
[0046] The fast electric field signal amplifier 4 is connected with the fast electric field detection antenna 3 and is configured to amplify and filter the fast electric field induction signal collected by the fast electric field detection antenna 3;
[0047] The slow electric field signal sampler 6 is connected with the slow electric field detection antenna 5 and is configured to collect the analog signal of the slow electric field detection antenna 5;
[0048] The slow electric field signal processor 7 is connected with the slow electric field signal sampler 6 and is configured to process the analog signal in the slow electric field signal sampler 6 and convert the analog signal into a digital signal;
[0049] The thunder monitoring positioning control box 2, see Figure 3 A novel combined thunder warning positioning instrument thunder monitoring positioning control box structure schematic diagram provided by the application, including a GPS antenna 8, a fast electric field signal sampler 9, a fast electric field signal processor 10, a remote communicator 11, a remote controller 12 and a local controller 13, wherein
[0050] The GPS antenna 8 is arranged at the top of the thunder monitoring positioning control box 2;
[0051] The thunder monitoring positioning control box 2 is a box structure with a top cover, and a partition plate is arranged inside to divide the inside of the thunder monitoring positioning control box 2 into two parts. The GPS antenna 8 is inlaid on the top cover of the thunder monitoring positioning control box 2, the fast electric field signal sampler 9, the fast electric field signal processor 10 and the remote communicator 11 are arranged on the front of the inside of the thunder monitoring positioning control box 2, and the remote controller 12 and the local controller 13 are arranged on the back of the inside of the thunder monitoring positioning control box 2.
[0052] The fast electric field signal sampler 9 is connected with the fast electric field signal amplifier 4 and is configured to collect the signal amplified by the fast electric field signal amplifier 4 into a local storage and convert it into a digital signal;
[0053] The fast electric field signal processor 10 is connected with the fast electric field signal sampler 9 and is configured to process the digital signal in the fast electric field signal sampler 9, compress the effective signal file and save it in the local storage;
[0054] The remote communicator 11 is connected with the slow electric field signal processor 7, the fast electric field signal processor 10 and the server, and is configured to undertake the communication work of the signal processor and the server, and upload data to the server in real time;
[0055] The remote controller 12 is connected with the fast electric field signal sampler 9 and the fast electric field signal processor 10, and is configured to perform a restart operation after the core equipment of the lightning early warning positioning instrument fails.
[0056] The local controller 13 is connected with the slow electric field signal processor 7 and the fast electric field signal processor 10, and is configured to output three-way early warning.
[0057] Further, the fast electric field detection antenna 3 is a flat plate antenna, which is arranged in parallel with the ground; the slow electric field detection antenna 5 is an atmospheric electric field detection antenna, and the atmospheric electric field detection antenna is a field grinding type detection antenna.
[0058] The flat plate antenna refers to an antenna that only propagates in a specific direction, which is generally used in point-to-point situations and is also called a "patch antenna". Currently, there are several types of flat plate antennas, such as dipole type and slot type, which have the characteristics of small size, light weight, small wind resistance, and convenient installation and use; the built-in high frequency head makes the antenna and the high frequency head integrated, which is convenient to adjust and has high efficiency. The atmospheric electric field instrument is a device used to measure atmospheric electric field and its changes, which measures the electric field by using the principle of induced charge generated by a conductor in an electric field.
[0059] The fast electric field detection antenna 3 and the slow electric field detection antenna 5 can detect the fast electric field induction signal and the atmospheric static electric field signal radiated when lightning occurs, providing raw data for lightning early warning positioning.
[0060] Further, the fast electric field signal amplifier 4 includes a fast electric field operational amplifier and a fast electric field filter circuit, the fast electric field operational amplifier is connected with the fast electric field detection antenna 3, and the fast electric field filter circuit is connected in the fast electric field operational amplifier circuit.
[0061] Further, the slow electric field signal sampler 6 includes a slow electric field operational amplifier, a slow electric field filter circuit, a phase-sensitive detection circuit and a phase discrimination circuit, the slow electric field operational amplifier is connected with the slow electric field detection antenna 5, the slow electric field filter circuit is connected between the slow electric field operational amplifier circuit and the phase-sensitive detection circuit, and the phase discrimination circuit is connected with the slow electric field detection antenna 5.
[0062] Operational amplifier is a circuit unit with high amplification, in the actual circuit, usually combined with feedback network together to form a certain function module, is a kind of amplifier with special coupling circuit and feedback; Filter circuit is often used to filter out the ripple in the rectified output voltage, generally composed of reactive elements; Signal sampling is also called sampling, is the discretization of continuous signal in time, that is, according to certain time interval on the analog signal point by point to take its moment.
[0063] The signal amplifier and the filter circuit are directly connected with the corresponding electric field detection antenna, and the function is to amplify and filter the original data collected by the detection antenna, so that the subsequent module can further process the fast electric field induction signal and the atmospheric static electric field signal radiated when lightning occurs.
[0064] Further, the slow electric field signal processor 7 comprises an analog-to-digital conversion circuit, and the analog-to-digital conversion circuit is connected with an integration circuit and is configured to convert the collected analog signal into a digital signal;
[0065] The analog signal can only be processed by software after being converted into a digital signal by A / D conversion, and this is realized by an A / D converter. Digital-to-analog conversion is the inverse process of analog-to-digital conversion. The integration circuit is mainly used for waveform transformation, elimination of offset voltage of amplification circuit, and integral compensation in feedback control.
[0066] The slow electric field signal processor 7 converts the analog signal in the slow electric field signal sampler 6 into a digital signal through the analog-to-digital conversion circuit, and works in coordination with the integration circuit to facilitate the subsequent module to further process the signal sampled by the slow electric field signal sampler 6.
[0067] Referring to Figure 4 A novel combination lightning early warning positioning instrument is provided for the front structure of the lightning monitoring positioning control box, and further, the fast electric field signal sampler 9 comprises a digital-to-analog conversion circuit and a GPS time-providing circuit, the signal sampling rate of the digital-to-analog conversion circuit is 1-25MHz, and the GPS time-providing circuit is connected with the GPS antenna 8 and the fast electric field signal sampler 9 and is configured to provide accurate time for the fast electric field signal sampler 9.
[0068] GPS is the abbreviation of Global Positioning System (Global Positioning System), which is a satellite navigation system developed and established by the US Department of Defense, which can provide low-cost, high-precision three-dimensional position, speed and precise timing navigation information for global users.
[0069] The GPS time-providing circuit used in the application has the function of providing time after being connected with the GPS antenna 8, and the time provided by the GPS time-providing circuit perfects the core function of the lightning early warning and positioning device, so that the user can know the specific time of lightning.
[0070] Further, the fast electric field signal processor 10 comprises a digital signal acquisition circuit and a digital signal storage circuit, the digital signal acquisition circuit is connected with the fast electric field signal sampler 9 and is configured to read the lightning data in the fast electric field signal sampler 9; the digital signal storage circuit is connected with the CPU in the fast electric field signal processor 10 and is configured to store the lightning data.
[0071] Signal processing is a general term for processing various types of electrical signals according to various expected purposes and requirements, that is, processing signals recorded on a certain medium to extract useful information, which is a general term for processing such as extraction, transformation, analysis, and synthesis of signals.
[0072] The signal processor internally comprises or is directly connected with a signal sampling circuit, which is used to process digital signals or analog signals in the signal sampling circuit, obtain detailed information of predicted lightning, and compress and save effective signal files to the local storage.
[0073] Further, the remote communicator 11 comprises a Wifi communication circuit, which is wirelessly connected with the fast electric field signal processor 10 and the slow electric field signal processor 7 and is configured to transmit the lightning early warning and positioning information stored in the signal processing circuit to the server.
[0074] Wifi is also called "mobile hotspot" in Chinese, which is a wireless local area network technology created based on IEEE 802.11 standard. The Wifi communication circuit uses Wifi technology to transmit the lightning early warning and positioning information processed by the signal processor to the server, which refers to the host owned by the inventor of the application and providing support services for all devices of the application.
[0075] Referring to Figure 5 The application provides a new combined lightning early warning and positioning device, and the reverse structure of the lightning monitoring and positioning control box is shown in the figure. Further, the remote controller 12 comprises a wireless communication circuit and a control circuit, the wireless communication circuit is connected with the remote communicator 11 and is configured to connect the wireless public network; the control circuit is connected with the fast electric field signal sampler 9 and the fast electric field signal processor 10 and is configured to remotely restart when the fast electric field signal sampler 9 or the fast electric field signal processor 10 is abnormal.
[0076] The control circuit refers to the circuit used for mechanical and electrical equipment control.
[0077] The wireless communication circuit also uses Wifi technology, so that the remote communicator 11 and the remote controller 12 can communicate with each other and access the wireless public network; the control circuit can control the entire application to restart when receiving the abnormal signal of the fast electric field signal sampler 9 or the fast electric field signal processor 10.
[0078] Further, the local controller 13 includes a local control output circuit connected with the slow electric field signal processor 7 and the fast electric field signal processor 10, configured to locally output a warning signal.
[0079] The local control output circuit receives the information after the signal processor analyzes the detailed information of lightning, and outputs the lightning warning positioning information on the user end.
[0080] The application provides a novel combined lightning warning positioning instrument, which comprises a lightning warning positioning antenna 1, the lightning warning positioning antenna 1 comprises a high-precision lightning positioning antenna 14 and a low-false alarm thunderstorm warning antenna 15, wherein the high-precision lightning positioning antenna 14 comprises a fast electric field detection antenna 3 and a fast electric field signal amplifier 4, the low-false alarm thunderstorm warning antenna 15 comprises a slow electric field detection antenna 5, a slow electric field signal sampler 6 and a slow electric field signal processor 7, and the high-precision lightning positioning antenna 14 and the low-false alarm thunderstorm warning antenna 15 are arranged at the top of the lightning warning positioning antenna 1, wherein the fast electric field signal amplifier 4 is connected with the fast electric field detection antenna 3, the slow electric field signal sampler 6 is connected with the slow electric field detection antenna 5, and the slow electric field signal processor 7 is connected with the slow electric field signal sampler 6; a lightning monitoring positioning control box 2 comprising a GPS antenna 8, a fast electric field signal sampler 9, a fast electric field signal processor 10, a remote communicator 11, a remote controller 12 and a local controller 13, wherein the GPS antenna 8 is arranged at the top of the lightning monitoring positioning control box 2, the fast electric field signal sampler 9 is connected with the fast electric field signal amplifier 4, the fast electric field signal processor 10 is connected with the fast electric field signal sampler 9, the remote communicator 11 is connected with the slow electric field signal processor 7, the fast electric field signal processor 10 and a server, the remote controller 12 is connected with the fast electric field signal sampler 9 and the fast electric field signal processor 10, and the local controller 13 is connected with the slow electric field signal processor 7 and the fast electric field signal processor 10.
[0081] The novel combined thunder warning positioning device integrates the field grinding atmospheric electric field device and the time difference method thunder positioning device, the single thunder warning device has the disadvantages of limited monitoring range, high false alarm rate, incapability of positioning the lightning, incapability of providing the thunder approaching warning, low accuracy of the single thunder positioning device, incapability of measuring the atmospheric electrostatic field and incapability of making the warning in the initial stage of the thunder formation, the false alarm rate of the thunder warning is reduced, and the cost of the thunder warning positioning equipment is reduced.
[0082] The similar parts among the embodiments provided in the application can be referred to each other, the specific implementation provided above is only several examples under the general concept of the application, and does not constitute the limitation of the protection scope of the application. For those skilled in the art, any other implementation extended according to the application scheme without creative labor belongs to the protection scope of the application.
Claims
1. A new combined lightning warning locator, characterized in that, Comprise: The lightning warning positioning antenna (1) comprises a high-precision lightning positioning antenna (14) and a low false alarm thunderstorm warning antenna (15), wherein, The high-precision lightning positioning antenna (14) comprises a fast electric field detection antenna (3) and a fast electric field signal amplifier (4), and the low false alarm thunderstorm warning antenna (15) comprises a slow electric field detection antenna (5), a slow electric field signal sampler (6) and a slow electric field signal processor (7), and the high-precision lightning positioning antenna (14) and the low false alarm thunderstorm warning antenna (15) are arranged at the top of the lightning warning positioning antenna (1), wherein, The fast electric field detection antenna (3) is configured to acquire the fast electric field induction signal radiated when lightning occurs, and the slow electric field detection antenna (5) is configured to measure the atmospheric electrostatic field in real time; The fast electric field detection antenna (3) is a flat antenna arranged parallel to the ground; the slow electric field detection antenna (5) is an atmospheric electric field detection antenna, which is a field grinding type detection antenna; The fast electric field signal amplifier (4) is connected with the fast electric field detection antenna (3) and is configured to amplify and filter the fast electric field induction signal collected by the fast electric field detection antenna (3); The fast electric field signal amplifier (4) comprises a fast electric field operational amplifier and a fast electric field filter circuit, the fast electric field operational amplifier is connected with the fast electric field detection antenna (3), and the fast electric field filter circuit is connected in the fast electric field operational amplifier circuit; The slow electric field signal sampler (6) is connected with the slow electric field detection antenna (5) and is configured to collect the analog signal of the slow electric field detection antenna (5); The slow electric field signal processor (7) is connected with the slow electric field signal sampler (6) and is configured to process the analog signal in the slow electric field signal sampler (6) and convert the analog signal into a digital signal; The lightning monitoring positioning control box (2) comprises a GPS antenna (8), a fast electric field signal sampler (9), a fast electric field signal processor (10), a remote communicator (11), a remote controller (12) and a local controller (13), wherein, The GPS antenna (8) is arranged at the top of the lightning monitoring positioning control box (2); The fast electric field signal sampler (9) is connected with the fast electric field signal amplifier (4) and is configured to collect the amplified signal of the fast electric field signal amplifier (4) into a local storage and convert it into a digital signal; The fast electric field signal processor (10) is connected with the fast electric field signal sampler (9) and is configured to process the digital signal in the fast electric field signal sampler (9) and compress the effective signal file and then save it in the local storage; The remote communicator (11) is connected with the slow electric field signal processor (7), the fast electric field signal processor (10) and the server and is configured to undertake the communication work of the signal processor and the server and upload the data to the server in real time; The remote controller (12) is connected with the fast electric field signal sampler (9) and the fast electric field signal processor (10) and is configured to perform a restart operation after the core equipment of the lightning warning positioning instrument fails; The local controller (13) is connected with the slow electric field signal processor (7) and the fast electric field signal processor (10) and is configured to output a three-way early warning. The fast electric field signal sampler (9) comprises a digital-analog conversion circuit and a GPS timing circuit, the signal sampling rate of the digital-analog conversion circuit is 1-25MHz, and the GPS timing circuit is connected with the GPS antenna (8) and the fast electric field signal sampler (9) and is configured to provide accurate time for the fast electric field signal sampler (9). The fast electric field signal processor (10) comprises a digital signal acquisition circuit and a digital signal storage circuit, the digital signal acquisition circuit is connected with the fast electric field signal sampler (9) and is configured to read the lightning data in the fast electric field signal sampler (9), and the digital signal storage circuit is connected with the CPU in the fast electric field signal processor (10) and is configured to store the lightning data. The remote controller (12) comprises a wireless communication circuit and a control circuit, the wireless communication circuit is connected with the remote communicator (11) and is configured to connect a wireless public network, and the control circuit is connected with the fast electric field signal sampler (9) and the fast electric field signal processor (10) and is configured to remotely restart when the fast electric field signal sampler (9) or the fast electric field signal processor (10) is abnormal.
2. A new combined lightning warning and locator according to claim 1, characterized in that, The slow electric field signal sampler (6) comprises a slow electric field operational amplifier, a slow electric field filter circuit, a phase-sensitive detection circuit and a phase discrimination circuit, the slow electric field operational amplifier is connected with the slow electric field detection antenna (5), the slow electric field filter circuit is connected between the slow electric field operational amplifier circuit and the phase-sensitive detection circuit, and the phase discrimination circuit is connected with the slow electric field detection antenna (5).
3. A new combined lightning warning and locator according to claim 1, characterized in that, The slow electric field signal processor (7) comprises an analog-digital conversion circuit, the analog-digital conversion circuit is connected with an integration circuit and is configured to convert the collected analog signal into a digital signal.
4. A new combined lightning warning and locator according to claim 1, characterized in that, The remote communicator (11) comprises a Wifi communication circuit, the Wifi communication circuit is wirelessly connected with the fast electric field signal processor (10) and the slow electric field signal processor (7) and is configured to transmit the lightning early warning positioning information stored in the signal processing circuit to a server.
5. A new combined lightning warning and locator according to claim 1, characterized in that, The local controller (13) comprises a local control output circuit, the local control output circuit is connected with the slow electric field signal processor (7) and the fast electric field signal processor (10) and is configured to locally output a warning signal.
Citation Information
Patent Citations
Method and system for comprehensively and synchronously observing lightning stroke discharge
CN102621414A
Integrated LEMP three-dimensional electric field measuring instrument
CN103792437A